Results 51 to 60 of about 6,539,589 (296)

A supernumerary tooth fused to the facial surface of a maxillary permanent central incisor: case report.

, 2000
A case of a supernumerary tooth fused to the facial surface of a maxillary permanent central incisor is reported. Root canal therapy on the maxillary central incisor was performed due to pulpal communication between the supernumerary tooth and the ...
김의성
core   +1 more source

Immediate anterior tooth replacement by using an esthetic fixed bridge: A case report

Medicina Clínica Práctica, 2020
Introduction: Loss of teeth due to extraction is often found in some cases. Preserving interproximal soft tissue and preventing alveolar bone from collapse due to tooth extraction is the most challenging issue. Ovate pontic design can give a natural look
Muhammad Ikbal, Acing Habibie Mude, Irfan Dammar, Nisrina Ekayani   +3 more
doaj   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

The Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Nonsurgical Endodontic Treatment of a Maxillary Central Incisor with Two Separate Roots: A Case Report [PDF]

, 2010
The success of endodontic therapy requires knowledge of the internal and external dental anatomy and its variations in presentation. This case report involves endodontic treatment of a traumatized maxillary central incisor with two separate ...
Mahdi Sedigh Shams, Mohammad Reza Nabavizadeh, Mohammad Reza Jouyandeh, Jouyandeh, Mohammad Reza, Nabavizadeh, Mohammad Reza, Atbaee, Adnan, Adnan Atbaee, Sedigh Shams, Mahdi   +7 more
core   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

The Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes, Lennart Müller‐Thomsen, Stefan Huggenberger   +2 more
wiley   +1 more source

Redescription of †Eobrasilia coutoi (Metatheria: Polydolopimorphia), a unique sclerocarpophagous metatherian from the Palaeogene of South America: Systematic affinities, and paleoecological and evolutionary implications

The Anatomical Record, EarlyView.
Abstract The ‘Palaeogene strata’ of the Itaboraí Basin (upper Paleocene‐lower Eocene), Southeastern Brazil, has preserved 29 genera and almost 50 species of metatherians (about 65% of its mammalian diversity). Among them, Eobrasilia coutoi Simpson, 1947 is the most enigmatic due to its quite fragmentary nature.
Leonardo M. Carneiro, Hugo Bampi, Ana C. Bernardes‐Dias, Lidiane Asevedo, João P. P. Araújo, Matheus R. Arêas, Alessandra S. Machado, Ricardo T. Lopes, Rafael C. Silva, Marina B. Soares, Gustavo R. Oliveira   +10 more
wiley   +1 more source

Biomechanical strain patterns in Meckel's cartilage underlie mandibular variation in FGFR2 mouse models

The Anatomical Record, EarlyView.
Abstract Sequence variations in fibroblast growth factor receptor 2 (FGFR2) are associated with craniosynostosis syndromes, disrupting craniofacial development, yet early mandibular alterations remain poorly characterized. This study examined Meckel's cartilage (MC) and mandibular morphology in mouse models of Apert (Fgfr2+/P253R) and Crouzon ...
Fred R. Foster, Alexandre Freire, Ana Cláudia Rossi, Jordan Wilson, Joan T. Richtsmeier, Kazuhiko Kawasaki, Felippe B. Prado, Susan M. Motch Perrine   +7 more
wiley   +1 more source

Comparison of Crown Root Morphology in Maxillary and Mandibular Anterior Teeth of Different Sagittal Skeletal Patterns in Bengali Population: A Retrospective CBCT Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Individual diversity is the cornerstone of human biology and this is also reflected in the crown and root morphology of teeth. The maxillary and mandibular anterior teeth can be differentiated based on their crown-root morphology, collum ...
Rupam Kumari, Sidhartha Das, Prasenjit Banerjee, Anusree Paul, Mita Mandal, Manish Jha, Samarendra Ray, Arunavo Nandy   +7 more
doaj   +1 more source

Surgical approach to malformation of maxillary central incisor following trauma to its predecessor. Two case reports [PDF]

, 2017
In the case reports, two different approaches have been described to treat the developmental disturbances in the maxillary central incisors due to trauma to its predecessor.
Annibali, Susanna, Pranno, Nicola, Vozza, Iole, Cristalli, Maria Paola, Giardino, Rita, La Monaca, Gerardo, Nicola Pranno   +6 more
core   +1 more source